/**
 * 处理富文本里的图片宽度自适应
 * 1.去掉img标签里的style、width、height属性
 * 2.img标签添加style属性：max-width:100%;height:auto
 * 3.修改所有style里的width属性为max-width:100%
 * 4.去掉<br/>标签
 * 修改字体样式
 * @param html
 * @returns {void|string|*}
 */
function formatRichText(html){
    console.log(html);
    let newContent= html.replace(/<img[^>]*>/gi,function(match,capture){
        match = match.replace(/style="[^"]+"/gi, '').replace(/style='[^']+'/gi, '');
        match = match.replace(/width="[^"]+"/gi, '').replace(/width='[^']+'/gi, '');
        match = match.replace(/height="[^"]+"/gi, '').replace(/height='[^']+'/gi, '');
        return match;
    });
    newContent = newContent.replace(/style="[^"]+"/gi,function(match,capture){
        match = match
        .replace(/<p>/gi, '<p class="p_class">')
        .replace(/width:[^;]+;/gi, 'max-width:100%;')
        .replace(/width:[^;]+;/gi, 'max-width:100%;');
        return match;
    });
    newContent = newContent.replace(/<br[^>]*\/>/gi, "");
    newContent = newContent.replace(/<a>/gi, '<a class="p_class "');
    newContent = newContent.replace(/<li>/gi, '<li class="p_class "');
    newContent = newContent.replace(/\<p/gi, '<p class="p_class "');
    newContent = newContent.replace(/\<span/gi, '<span class="p_class "');
    newContent = newContent.replace(/\<img/gi, '<img style="width:100%;height:auto;display:block;margin-top:0;margin-bottom:0;"');
    return newContent;
}
module.exports = {
	formatRichText
}